<template>
  <div>
    <!--Breadcrumb面包屑组件-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <!--为echarts图标准备显示区域-->
      <div id="echartsBox" style="width: 600px; height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from "echarts"; // 引入echarts
import _ from "lodash"; // 引入lodash
export default {
  name: "reports",
  data() {
    return {
      // 需要合并的图表数据
      options: {
        title: { text: "用户来源" },
        tooltip: {
          trigger: "axis",
          axisPointer: { type: "cross", label: { backgroundColor: "#E9EEF3" } }
        },
        grid: { left: "3%", right: "4%", bottom: "3%", containLabel: true },
        xAxis: [{ boundaryGap: false }],
        yAxis: [{ type: "value" }]
      }
    };
  },
  created() {},
  async mounted() {
    //  DOM创建后的生命周期函数
    const { data: res } = await this.$http.get("reports/type/1");
    if (res.meta.status !== 200)
      return this.$message.error("获取图表数据失败，请重试!");
    // DOM创建完成后初始化图表
    var myChart = echarts.init(document.getElementById("echartsBox"));
    // 图表数据合并
    const result = _.merge(res.data, this.options);
    // 将配置项设置到echartsBox上并展示图表
    myChart.setOption(result);
  },
  methods: {}
};
</script>

<style scoped></style>
